10

我想在打开弹出窗口之前检查弹出窗口是否已经打开。如何使用 Jquery 完成它？

以下是我打开新弹出窗口的代码：

window.open("mystopchat.php?stat=1&session="+data['myid1']['session_id'][i],"win1","width=500,height=500");

现在在我调用这个之前，我想确定这个弹出窗口还没有打开。

4

5 回答 5

9

这是我使用的一个小技巧，也许你可以使用它：

var winRef; //This holds the reference to your page, to see later it is open or not

function openWindow() {  
    var url = //Your URL;
    if (typeof (winRef) == 'undefined' || winRef.closed) {
        //create new, since none is open
        winRef = window.open(url, "_blank");
    }
    else {
        try {
            winRef.document; //if this throws an exception then we have no access to the child window - probably domain change so we open a new window
        }
        catch (e) {
            winRef = window.open(url, "_blank");
        }

        //IE doesn't allow focus, so I close it and open a new one
        if (navigator.appName == 'Microsoft Internet Explorer') {
            winRef.close();
            winRef = window.open(url, "_blank");
        }
        else {
            //give it focus for a better user experience
            winRef.focus();
        }
    }
}

希望能帮助到你。

于 2014-01-12T13:58:02.873 回答
6 
var popup;
function openPopupOneAtATime() {
    if (popup && !popup.closed) {
       popup.focus();
       /* or do something else, e.g. close the popup or alert a warning */
    }
    else {
       popup = window.open(...);      
    }
}
于 2012-06-04T13:28:06.143 回答
0 
var newWindow = null;

function openwindow()
{
  // open the new window only if newWindow is null (not opened yet)
  // or if it was closed
  if ((newWindow == null) || (newWindow.closed))
    newWindow = window.open(...);
}
于 2012-06-04T13:27:26.540 回答
0

这是我的建议：

function authorize(callback) {

if(!document.authorize) {
    console.log('Opening authorization window...');
    document.authorize = window.open('popup.html','tw','width=300,height=200');
}

if(document.authorize.closed) {
    console.log('Authorization window was closed...');
    setTimeout(callback,0); 
} else {
    setTimeout(function(){
        console.log('Authorization window still open...');
        authorize(callback);
    },1000);    
}

return false;
}


function test() {
    authorize(function(){
      alert('teste');
    });
}
于 2014-02-15T03:30:21.320 回答
-1

试试这个（你会知道是否调用了打开的窗口）：

var isOpen = "false";
function OpenPopup()
{
   if(isOpen == "false")
   {
         isOpen = "true"; 
         window.open("mystopchat.php?stat=1&session="+data['myid1']['session_id']  [i],"win1","width=500,height=500");
    }
}
于 2012-06-04T13:28:03.540 回答